Suspension for vehicles



March 30 1926. 1,578,308

C. AMEDEE-MANNHEIM SUSPENSION FOR VEHICLES Filed August 31. 1922 1271/6 for CfimeaeeMa/whe/k/ Patented l iiar. 3%, 192 I I I I Y r warren STATES PATENT 'oF1:1

CHARLES AMEDEEMANNHE IM,; OF PARIS, FRANCE.

"SUSPENSION FOR VEHICLES.

Application filed August 31, 1922. Serial No. 585,495.

T all whom it may concern: roller-V10 pressingon the branch 1 of the Be it known that I, CHARLES AMEDEE- angle member which constitutes a raceway MANNHEIM, acitizen of the French Republic, for this roller. It is easy to see that any residing 21 Boulevard Beausejour, Paris, shock on the axle 4 will cause the angle 5 France, have invented new and useful I111 member to pivot about the point 3 of t-he55 provements in a Suspension for Vehicles, of frame and this will determine an increase of which the following is the specification. compression of the spring 5 at the same time This invention relates to a suspension for as a decrease of the effective length of the vehicles. lever arm at the end of which act-sthe force The invention is adapted to permit the Fof the spring. The spring on the one hand 60 use, for the suspension proper, of a very and the form of the branch 1 of the angle flexible resilient cushion. For this purpose, member on the other handmust be chosen in the devices described hereafter comprise a such amannerthatduring these shocks the carrying system for support'ng the frame on momentum relatively to the point 4- 0f the" .15 the axles such that, exclusively of the resilifo'rcelF of the spring (that is to sayFm4E'11) ent ushion forming he suspension, the remains equal-to the moment P50 l'12 of the frame rests in neutral equilibrium on the fraction Pof the weight of the frame'applied axles whatever maybe the variations of the at 3,. Under these conditions, the frame rests distance between the frame and the axles. in neutral equilibrium on the axles,,and the The resilient cushion, which constitutes the frame will not have any tendency to move 7 suspension proper, is therefore adapted to upward or downward,- whatever may be its maintain this distance at, its normal value; distance from the axle. This device is adand consequently, it can be considerably just-able'according to the load by screwing more flexible than in ordinary suspensions up or unscrewing the nut 13 of thecylinder in which this cushion is simultaneously used 6 on which the spring 5 takes a'bearing. .75 for suspension and carrying purposes and The laminated steel spring 16 constitutes it is this which produces the increased cointhe flexible resilient cushion forming the fort. suspension proper. e

The accompanying drawing illustrates by In the example shown in Fig. 2,'the rod way of example two forms of carrying out 8 is guided in holes 14? 14", provided in 80 the invention. members l5 15 rigid with the frame 2; the

Fig. 1 is a diagrammatic View of what cylinder 6 is done away with, and thenut may be termed the standard form of con- 13 is screwed on the rod 8 itself. The opstruction. eration isobviously identical with that pre- Fig. 2 illustrates a modification thereof. viously described.

In these figures, the frame of the vehicle What I claim as my invention and desire is illustrated by its longitudinal bearer and to secure by Letters Patent is: I l it will be assumed that any point of the 1. In a suspension for vehicles, a frame, 1 frame is invariably connected to this lon an axle, a two branched lever, a pivot co'ngitudinal bearer. The diagrammatic views necting the end of one ofthe branches of the apply to the front portion of the frame as lever to the frame, -a pivot connecting the well as to the rear portion thereof. lever at its middle part to the axle, a rod In the example shown in Fig. 1, a rigid guided in the frame, an abutment carried by angle member 1 ,1 pivoted to the frame the rod, a coil spring bearing on the frame 2 at 3, is pivoted to the axle at l; and a and on the abutment, a roller on the rod for 95 spring 5 acting by compression is contained contacting with the other branch of the in a horizontal cylinder 6 rigid with the lever, and a leaf spring interposed bet-ween frame 2 which spring bears against an abutthe axle and'the frame. mentT on a rod 8, guided in a bore 9 of 2. Ina system of suspension for vehicles,

cylinder 6. This rod carries at its end a a frame, an aXle,-.a branched lever, 'a joint 0 connecting the end of one of the branches of guided in the frame, an abutment carried by the rod, a coil spring bearing on the frame andon the abutment, a member for regulating the initial tension of the spring, a roller posed between the axle and the frame. 1

In testimony whereof I have signed my name to this specification. f 7

CHARLES AMEDEE-MANNHEIM. 

